APA način citiranja (7. izdanje)
ebrary, Inc, & Powell, K. M. (2009). "Answer at once": Letters of mountain families in Shenandoah National Park, 1934-1938. University of Virginia Press.
Čikaški stil citiranja (17. izdanje)
ebrary, Inc, i Katrina M. Powell. "Answer at Once": Letters of Mountain Families in Shenandoah National Park, 1934-1938. Charlottesville: University of Virginia Press, 2009.
MLA način citiranja (9. izdanje)
ebrary, Inc, i Katrina M. Powell. "Answer at Once": Letters of Mountain Families in Shenandoah National Park, 1934-1938. University of Virginia Press, 2009.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.